Ball-and-socket pipe-joint.



J. KOBNIG.

BALL AND SOCKET PIPE JOINT. APPLICATION FILED SEPT. 24, 1910.

Patented June 6,1911.

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I In Aiforzzys.

J OHANN KOENIG, 0F RIGA, RUSSIA.

BALL-AND-SOCKET PIPE-JOINT.

Specification of Letters Patent.

Patented June 6, 1911.

Application filed September 24, 1910. Serial No. 583,540.

To all whom it may comer'n:

Be it known that I, JOHANN KOENIG, a subject of the King of Bavaria, residing at 97 Alexanderstrasse, Riga, Russia, have invented. new and useful Improvements in Ball-and-Socket Pipe-Joints, of which the following is a specification.

The subject-matter of my invention is an improved ball-and-socket pipe-joint, in which the two ends of the pipe, which are revoluble relatively to one another in wellknown manner, are relieved in such manner by a bolt carried by ribs in the'ends of the pipes that the ball-and-socket joint is able to take up internal pressure both above and below atmospheric.

A primary object of my invention is to provide an inexpensive special construction of the parts of the ball-and-socket joint which insures the parts of the joint connected with one another being able to rotate readily.

One illustrative embodiment of my invention is represented in-longitudinal section in the accompanying drawing.

Referring to the drawing, my ball-andsocket pipejoint comprises the tubular socket b, the tubular member a fitting into the same and a bolt/e which connects these members, passes through the hubs or sleeves d, 0 carried by the ribs 7', and is secured at its ends by means of nuts f, f abutting against said hubs. The bolt 6 abuts in addition by means of a shoulder m against the hub d. The joint between the tubular members a, b is packed by the packing p.

The part 9 of the tubular member it, around which the packing p is placed, is

spherical and its center coincides with the center of the joint. The ends of the hub d are alsoturned substantially spherical, that is approximately according to the dotted circle shown in the drawing. The concave faces of the nut f and hub c facing the ends of the hub d are spherical, so that the formations of these hollow cones form tangents to the spherical faces of the part cl. Consequently, the tubular member a can rotate spherically with regard to-the tubular member 6, while the ends of the hub (i always lie against the two conical faces of the nut f and the hub 0. Internal excess pressure above atmospheric is taken up by the concave bottom face of the nut 7", while the conical face of the hub 0 takes up pressure due to internal pressure below atmospheric.

I claim In a ball and socket pipe joint, the combination with a tubular socket and a tubular member fitting into the same, of a sleeve having rounded ends mounted in the center of the tubular member, a second and coaxial sleeve fitting one end of the first sleeve and mounted in the said tubular socket, a bolt passing centrally through said sleeves, a nut on one end of the bolt bearing against the end of the first sleeve, a nut on the other 'end of the bolt bearing against the end of the second sleeve, and a shoulder abutting against the wall of the first sleeve in the central plane of the joint, for the purpose specified.

JOHANN KOENIG. Witnesses:

' RunoLr LEsoHINsKY,

ALEXANDER STERNBERG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C." 

